Crucible Course Marine Corps recruits maneuver the casualty evacuation course during the Crucible at Marine Corps Recruit Depot Parris Island, S.C., July 13, 2023. The Crucible is the final test in the recruits' training. SHARE IMAGE: Download Image: Full Size (1.67 MB) Tags: marine corps Photo By: Marine Corps Pfc. Casey Cooper VIRIN: 230713-M-YL291-1135.JPG Photo Gallery